1H and 13C NMR spectra were recorded on a Jeol ECS 400 (400 MHz for 1H, 101 MHz for 13C) at ambient temperature. Chemical shifts are reported relative to residual solvent peaks and coupling constants (J) are given in hertz. High-resolution ESI mass spectra were recorded on a Bruker microTOF electrospray mass spectrometer. Infrared (IR) spectra were recorded on a PerkinElmer Spectrum Two (ATIR). Analytical HPLC measurements were performed on a Shimadzu HPLC system (Prominence) equipped with a LC-20AD pump, SIL-20A autosampler, DGU-20AS degasser, CTO-20AC column oven, CBM-20A communication bus module and SPD-M20A diode array detector using an Athena C18-WP column (100 Å, 4.6 × 250 mm, 5 μm). Eluent gradient: 5–95% MeCN/H2O with a 0.1% formic acid modifier, over 15 minutes.
Microtof electrospray mass spectrometer
Manufactured by Bruker
The MicroTOF electrospray mass spectrometer is a high-performance analytical instrument designed for accurate mass measurements of small molecules. It utilizes electrospray ionization to efficiently ionize and transfer analytes into the mass spectrometer for detection and analysis.
Automatically generated - may contain errors
Lab products found in correlation
Ecs 400, by JEOL (1 mentions)
Hplc system, by Shimadzu (1 mentions)
Spectrum two, by PerkinElmer (1 mentions)
Dip 370 digital polarimeter, by Jasco (1 mentions)
Spectrum two ft ir spectrophotometer, by PerkinElmer (1 mentions)
J 810 cd spectropolarimeter, by Jasco (1 mentions)
Uv 1800 spectrophotometer, by Shimadzu (1 mentions)
F 4500 fluorescence spectrophotometer, by Hitachi (1 mentions)
2 protocols using microtof electrospray mass spectrometer
1
Comprehensive Analytical Characterization Protocol
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1H and 13C NMR spectra were recorded on a Jeol ECS 400 (400 MHz for 1H, 101 MHz for 13C) at ambient temperature. Chemical shifts are reported relative to residual solvent peaks and coupling constants (J) are given in hertz. High-resolution ESI mass spectra were recorded on a Bruker microTOF electrospray mass spectrometer. Infrared (IR) spectra were recorded on a PerkinElmer Spectrum Two (ATIR). Analytical HPLC measurements were performed on a Shimadzu HPLC system (Prominence) equipped with a LC-20AD pump, SIL-20A autosampler, DGU-20AS degasser, CTO-20AC column oven, CBM-20A communication bus module and SPD-M20A diode array detector using an Athena C18-WP column (100 Å, 4.6 × 250 mm, 5 μm). Eluent gradient: 5–95% MeCN/H2O with a 0.1% formic acid modifier, over 15 minutes.
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1H and 13C NMR spectra were recorded on a Jeol ECS 400 (400 MHz for 1H, 101 MHz for 13C) at ambient temperature. Chemical shifts are reported relative to residual solvent peaks and coupling constants (J) are given in hertz. High-resolution ESI mass spectra were recorded on a Bruker microTOF electrospray mass spectrometer. Infrared (IR) spectra were recorded on a PerkinElmer Spectrum Two (ATIR). Analytical HPLC measurements were performed on a Shimadzu HPLC system (Prominence) equipped with a LC-20AD pump, SIL-20A autosampler, DGU-20AS degasser, CTO-20AC column oven, CBM-20A communication bus module and SPD-M20A diode array detector using an Athena C18-WP column (100 Å, 4.6 × 250 mm, 5 μm). Eluent gradient: 5–95% MeCN/H2O with a 0.1% formic acid modifier, over 15 minutes.
2
Comprehensive Characterization Techniques
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NMR spectra were recorded on Jeol EX and ES 400 MHz instruments. 1 H experiments were run at 399.78 MHz. 13 C experiments were run at 100.53 MHz and were proton decoupled. Positive and negative ion electrospray ionisation mass spectrometry (ESI-MS) was performed on a Bruker microTOF electrospray mass spectrometer. Elemental analysis was performed on an Exeter CE-440 elemental analyser. Infrared (ATIR) spectra were recorded on a Perkin Elmer FT-IR spectrum two spectrophotometer at ambient temperature. Melting points were determined using a Stuart Scientific SMP3 melting point apparatus. Specific rotation was recorded on a Jasco DIP-370 digital polarimeter. Fluorescence spectra were recorded on a Hitachi F-4500 fluorescence spectrophotometer at ambient temperature. Electronic absorption spectra were recorded on a Shimadzu UV-1800 spectrophotometer at ambient temperature. Circular dichroism was performed on a Jasco J810 CD spectropolarimeter at 20 °C under a constant flow of nitrogen.
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